code: def test_to_datetime(self):
      pdf = pd.DataFrame(
          {"year": [2015, 2016], "month": [2, 3], "day": [4, 5]}
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
      self.assert_eq(
          pd.to_datetime(1490195805, unit="s"),
          ps.to_datetime(1490195805, unit="s"),
      )
      self.assert_eq(
          pd.to_datetime(1490195805433502912, unit="ns"),
          ps.to_datetime(1490195805433502912, unit="ns"),
      )
  
      self.assert_eq(
          pd.to_datetime(
              [1, 2, 3], unit="D", origin=pd.Timestamp("1960-01-01")
          ),
          ps.to_datetime(
              [1, 2, 3], unit="D", origin=pd.Timestamp("1960-01-01")
          ),
      )
  
      pdf = pd.DataFrame(
          {"years": [2015, 2016], "month": [2, 3], "day": [4, 5]}
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
      pdf = pd.DataFrame(
          {"years": [2015, 2016], "months": [2, 3], "day": [4, 5]}
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
      pdf = pd.DataFrame(
          {"years": [2015, 2016], "months": [2, 3], "days": [4, 5]}
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
      # SPARK-36946: Support time for ps.to_datetime
      pdf = pd.DataFrame(
          {
              "year": [2015, 2016],
              "month": [2, 3],
              "day": [4, 5],
              "hour": [2, 3],
              "minute": [10, 30],
              "second": [21, 25],
          }
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
      pdf = pd.DataFrame(
          {
              "year": [2015, 2016],
              "month": [2, 3],
              "day": [4, 5],
              "hour": [2, 3],
              "minute": [10, 30],
          }
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
      pdf = pd.DataFrame(
          {
              "year": [2015, 2016],
              "month": [2, 3],
              "day": [4, 5],
              "hour": [2, 3],
          }
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
      pdf = pd.DataFrame(
          {
              "year": [2015, 2016],
              "month": [2, 3],
              "day": [4, 5],
              "hour": [2, 3],
              "minute": [10, 30],
              "second": [21, 25],
              "ms": [50, 69],
          }
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
      pdf = pd.DataFrame(
          {
              "year": [2015, 2016],
              "month": [2, 3],
              "day": [4, 5],
              "hour": [2, 3],
              "minute": [10, 30],
              "second": [21, 25],
              "ms": [50, 69],
              "millisecond": [123, 678],
          }
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
      pdf = pd.DataFrame(
          {
              "Year": [2015, 2016],
              "Month": [2, 3],
              "Day": [4, 5],
              "Hour": [2, 3],
              "Minute": [10, 30],
              "Second": [21, 25],
              "ms": [50, 69],
              "millisecond": [123, 678],
          }
      )
      psdf = ps.from_pandas(pdf)
      dict_from_pdf = pdf.to_dict()
  
      self.assert_eq(pd.to_datetime(pdf), ps.to_datetime(psdf))
      self.assert_eq(
          pd.to_datetime(dict_from_pdf), ps.to_datetime(dict_from_pdf)
      )
  
imports: import itertools
  import inspect
  import pandas
  import numpy
  from pyspark import pandas
  from pyspark.pandas.exceptions import PandasNotImplementedError
  from pyspark.pandas.namespace import _get_index_map, read_delta
  from pyspark.pandas.utils import spark_column_equals
  from pyspark.pandas.missing.general_functions import MissingPandasLikeGeneralFunctions
  from pyspark.testing.pandasutils import PandasOnSparkTestCase
  from pyspark.testing.sqlutils import SQLTestUtils
label_desc: Use image node_id 2 for calling the NamespaceTestsMixin obj's underlying member method code with example usage: obj.test_to_datetime() without return types